VMs are converting to read-only file system once a day. Why is this happening?

ctallc

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Dec 16, 2021
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I have Home Assistant and Ubuntu 20.04 running in virtual machines and every day I come home to find the console flooded with these messages. I ran a SMART test on my SSD and it came back clean with no errors. Sometimes when I reboot the VM it starts back up fine, other times I have to run fsck -f ... for it to boot back up.
 

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Only the Ubuntu VM did this act? if so - you have check the Syslog in the Ubuntu VM and see what's happening